author | haftmann |
Wed, 13 Jan 2010 12:20:37 +0100 | |
changeset 34895 | 19fd499cddff |
parent 34894 | fadbdd350dd1 |
child 34901 | 0d6a2ae86525 |
permissions | -rw-r--r-- |
24219 | 1 |
(* Title: Pure/Isar/code.ML |
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Author: Florian Haftmann, TU Muenchen |
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Abstract executable ingredients of theory. Management of data |
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dependent on executable ingredients as synchronized cache; purged |
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on any change of underlying executable ingredients. |
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*) |
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signature CODE = |
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sig |
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(*constants*) |
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val check_const: theory -> term -> string |
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val read_bare_const: theory -> string -> string * typ |
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val read_const: theory -> string -> string |
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val string_of_const: theory -> string -> string |
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val cert_signature: theory -> typ -> typ |
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val read_signature: theory -> string -> typ |
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val const_typ: theory -> string -> typ |
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val subst_signatures: theory -> term -> term |
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val args_number: theory -> string -> int |
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(*constructor sets*) |
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val constrset_of_consts: theory -> (string * typ) list |
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-> string * ((string * sort) list * (string * typ list) list) |
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(*code equations and certificates*) |
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val mk_eqn: theory -> thm * bool -> thm * bool |
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val mk_eqn_warning: theory -> thm -> (thm * bool) option |
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val mk_eqn_liberal: theory -> thm -> (thm * bool) option |
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val assert_eqn: theory -> thm * bool -> thm * bool |
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val const_typ_eqn: theory -> thm -> string * typ |
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val expand_eta: theory -> int -> thm -> thm |
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type cert |
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val empty_cert: theory -> string -> cert |
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val cert_of_eqns: theory -> string -> (thm * bool) list -> cert |
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val constrain_cert: theory -> sort list -> cert -> cert |
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val typscheme_cert: theory -> cert -> (string * sort) list * typ |
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val equations_cert: theory -> cert -> ((string * sort) list * typ) * (term list * term) list |
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val equations_thms_cert: theory -> cert -> ((string * sort) list * typ) * ((term list * term) * (thm * bool)) list |
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val pretty_cert: theory -> cert -> Pretty.T list |
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(*executable code*) |
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val add_type: string -> theory -> theory |
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val add_type_cmd: string -> theory -> theory |
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val add_signature: string * typ -> theory -> theory |
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val add_signature_cmd: string * string -> theory -> theory |
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val add_datatype: (string * typ) list -> theory -> theory |
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val add_datatype_cmd: string list -> theory -> theory |
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val type_interpretation: |
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(string * ((string * sort) list * (string * typ list) list) |
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-> theory -> theory) -> theory -> theory |
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val add_eqn: thm -> theory -> theory |
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val add_nbe_eqn: thm -> theory -> theory |
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val add_default_eqn: thm -> theory -> theory |
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val add_default_eqn_attribute: attribute |
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val add_default_eqn_attrib: Attrib.src |
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val del_eqn: thm -> theory -> theory |
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val del_eqns: string -> theory -> theory |
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val add_case: thm -> theory -> theory |
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val add_undefined: string -> theory -> theory |
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val get_datatype: theory -> string -> ((string * sort) list * (string * typ list) list) |
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val get_datatype_of_constr: theory -> string -> string option |
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val get_cert: theory -> ((thm * bool) list -> (thm * bool) list) -> string -> cert |
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val get_case_scheme: theory -> string -> (int * (int * string list)) option |
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val undefineds: theory -> string list |
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val print_codesetup: theory -> unit |
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(*infrastructure*) |
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val set_code_target_attr: (string -> thm -> theory -> theory) -> theory -> theory |
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val purge_data: theory -> theory |
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end; |
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signature CODE_DATA_ARGS = |
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sig |
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type T |
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val empty: T |
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end; |
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signature CODE_DATA = |
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sig |
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type T |
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val change: theory -> (T -> T) -> T |
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val change_yield: theory -> (T -> 'a * T) -> 'a * T |
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end; |
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signature PRIVATE_CODE = |
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sig |
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include CODE |
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val declare_data: Object.T -> serial |
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val change_data: serial * ('a -> Object.T) * (Object.T -> 'a) |
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-> theory -> ('a -> 'a) -> 'a |
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val change_yield_data: serial * ('a -> Object.T) * (Object.T -> 'a) |
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-> theory -> ('a -> 'b * 'a) -> 'b * 'a |
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end; |
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structure Code : PRIVATE_CODE = |
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struct |
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(** auxiliary **) |
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(* printing *) |
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fun string_of_typ thy = setmp_CRITICAL show_sorts true (Syntax.string_of_typ_global thy); |
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fun string_of_const thy c = case AxClass.inst_of_param thy c |
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of SOME (c, tyco) => Sign.extern_const thy c ^ " " ^ enclose "[" "]" (Sign.extern_type thy tyco) |
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| NONE => Sign.extern_const thy c; |
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(* constants *) |
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fun typ_equiv tys = Type.raw_instance tys andalso Type.raw_instance (swap tys); |
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fun check_bare_const thy t = case try dest_Const t |
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of SOME c_ty => c_ty |
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| NONE => error ("Not a constant: " ^ Syntax.string_of_term_global thy t); |
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fun check_const thy = AxClass.unoverload_const thy o check_bare_const thy; |
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fun read_bare_const thy = check_bare_const thy o Syntax.read_term_global thy; |
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fun read_const thy = AxClass.unoverload_const thy o read_bare_const thy; |
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(** data store **) |
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(* code equations *) |
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type eqns = bool * (thm * bool) list; |
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(*default flag, theorems with proper flag *) |
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fun add_drop_redundant thy (thm, proper) thms = |
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let |
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val args_of = snd o strip_comb o map_types Type.strip_sorts |
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o fst o Logic.dest_equals o Thm.plain_prop_of; |
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val args = args_of thm; |
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val incr_idx = Logic.incr_indexes ([], Thm.maxidx_of thm + 1); |
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fun matches_args args' = length args <= length args' andalso |
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Pattern.matchess thy (args, (map incr_idx o take (length args)) args'); |
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fun drop (thm', proper') = if (proper orelse not proper') |
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andalso matches_args (args_of thm') then |
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(warning ("Code generator: dropping redundant code equation\n" ^ |
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Display.string_of_thm_global thy thm'); true) |
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else false; |
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in (thm, proper) :: filter_out drop thms end; |
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fun add_thm thy _ thm (false, thms) = (false, add_drop_redundant thy thm thms) |
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| add_thm thy true thm (true, thms) = (true, thms @ [thm]) |
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| add_thm thy false thm (true, thms) = (false, [thm]); |
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fun del_thm thm = apsnd (remove (eq_fst Thm.eq_thm_prop) (thm, true)); |
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(* executable code data *) |
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datatype spec = Spec of { |
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history_concluded: bool, |
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signatures: int Symtab.table * typ Symtab.table, |
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eqns: ((bool * eqns) * (serial * eqns) list) Symtab.table |
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(*with explicit history*), |
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dtyps: ((serial * ((string * sort) list * (string * typ list) list)) list) Symtab.table |
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(*with explicit history*), |
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cases: (int * (int * string list)) Symtab.table * unit Symtab.table |
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}; |
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fun make_spec (history_concluded, ((signatures, eqns), (dtyps, cases))) = |
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Spec { history_concluded = history_concluded, |
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signatures = signatures, eqns = eqns, dtyps = dtyps, cases = cases }; |
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fun map_spec f (Spec { history_concluded = history_concluded, signatures = signatures, |
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eqns = eqns, dtyps = dtyps, cases = cases }) = |
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make_spec (f (history_concluded, ((signatures, eqns), (dtyps, cases)))); |
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fun merge_spec (Spec { history_concluded = _, signatures = (tycos1, sigs1), eqns = eqns1, |
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dtyps = dtyps1, cases = (cases1, undefs1) }, |
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Spec { history_concluded = _, signatures = (tycos2, sigs2), eqns = eqns2, |
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dtyps = dtyps2, cases = (cases2, undefs2) }) = |
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let |
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val signatures = (Symtab.merge (op =) (tycos1, tycos2), |
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Symtab.merge typ_equiv (sigs1, sigs2)); |
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fun merge_eqns ((_, history1), (_, history2)) = |
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let |
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val raw_history = AList.merge (op = : serial * serial -> bool) |
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(K true) (history1, history2) |
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val filtered_history = filter_out (fst o snd) raw_history |
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val history = if null filtered_history |
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then raw_history else filtered_history; |
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in ((false, (snd o hd) history), history) end; |
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val eqns = Symtab.join (K merge_eqns) (eqns1, eqns2); |
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val dtyps = Symtab.join (K (AList.merge (op =) (K true))) (dtyps1, dtyps2); |
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val cases = (Symtab.merge (K true) (cases1, cases2), |
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Symtab.merge (K true) (undefs1, undefs2)); |
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in make_spec (false, ((signatures, eqns), (dtyps, cases))) end; |
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fun history_concluded (Spec { history_concluded, ... }) = history_concluded; |
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fun the_signatures (Spec { signatures, ... }) = signatures; |
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fun the_eqns (Spec { eqns, ... }) = eqns; |
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fun the_dtyps (Spec { dtyps, ... }) = dtyps; |
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fun the_cases (Spec { cases, ... }) = cases; |
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val map_history_concluded = map_spec o apfst; |
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val map_signatures = map_spec o apsnd o apfst o apfst; |
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val map_eqns = map_spec o apsnd o apfst o apsnd; |
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val map_dtyps = map_spec o apsnd o apsnd o apfst; |
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val map_cases = map_spec o apsnd o apsnd o apsnd; |
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(* data slots dependent on executable code *) |
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(*private copy avoids potential conflict of table exceptions*) |
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structure Datatab = Table(type key = int val ord = int_ord); |
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local |
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type kind = { empty: Object.T }; |
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val kinds = Unsynchronized.ref (Datatab.empty: kind Datatab.table); |
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fun invoke f k = case Datatab.lookup (! kinds) k |
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of SOME kind => f kind |
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| NONE => sys_error "Invalid code data identifier"; |
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in |
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fun declare_data empty = |
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let |
225 |
val k = serial (); |
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val kind = { empty = empty }; |
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val _ = CRITICAL (fn () => Unsynchronized.change kinds (Datatab.update (k, kind))); |
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in k end; |
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230 |
fun invoke_init k = invoke (fn kind => #empty kind) k; |
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232 |
end; (*local*) |
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233 |
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235 |
(* theory store *) |
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236 |
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237 |
local |
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238 |
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239 |
type data = Object.T Datatab.table; |
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fun empty_dataref () = Synchronized.var "code data" (NONE : (data * theory_ref) option); |
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structure Code_Data = Theory_Data |
31962 | 243 |
( |
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type T = spec * (data * theory_ref) option Synchronized.var; |
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val empty = (make_spec (false, (((Symtab.empty, Symtab.empty), Symtab.empty), |
34244 | 246 |
(Symtab.empty, (Symtab.empty, Symtab.empty)))), empty_dataref ()); |
247 |
val extend = I |
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248 |
fun merge ((spec1, _), (spec2, _)) = |
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249 |
(merge_spec (spec1, spec2), empty_dataref ()); |
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31962 | 250 |
); |
251 |
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252 |
in |
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253 |
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254 |
(* access to executable code *) |
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255 |
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256 |
val the_exec = fst o Code_Data.get; |
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257 |
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fun map_exec_purge f = Code_Data.map (fn (exec, _) => (f exec, empty_dataref ())); |
31962 | 259 |
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val purge_data = (Code_Data.map o apsnd) (fn _ => empty_dataref ()); |
31962 | 261 |
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262 |
fun change_eqns delete c f = (map_exec_purge o map_eqns |
33006 | 263 |
o (if delete then Symtab.map_entry c else Symtab.map_default (c, ((false, (true, [])), []))) |
31962 | 264 |
o apfst) (fn (_, eqns) => (true, f eqns)); |
265 |
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266 |
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267 |
(* tackling equation history *) |
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268 |
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269 |
fun continue_history thy = if (history_concluded o the_exec) thy |
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270 |
then thy |
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271 |
|> (Code_Data.map o apfst o map_history_concluded) (K false) |
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272 |
|> SOME |
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273 |
else NONE; |
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274 |
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275 |
fun conclude_history thy = if (history_concluded o the_exec) thy |
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276 |
then NONE |
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277 |
else thy |
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278 |
|> (Code_Data.map o apfst) |
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279 |
((map_eqns o Symtab.map) (fn ((changed, current), history) => |
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280 |
((false, current), |
|
281 |
if changed then (serial (), current) :: history else history)) |
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282 |
#> map_history_concluded (K true)) |
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283 |
|> SOME; |
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284 |
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34244 | 285 |
val _ = Context.>> (Context.map_theory (Theory.at_begin continue_history #> Theory.at_end conclude_history)); |
31962 | 286 |
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287 |
||
288 |
(* access to data dependent on abstract executable code *) |
|
289 |
||
34244 | 290 |
fun change_yield_data (kind, mk, dest) theory f = |
31962 | 291 |
let |
34244 | 292 |
val dataref = (snd o Code_Data.get) theory; |
34251 | 293 |
val (datatab, thy_ref) = case Synchronized.value dataref |
294 |
of SOME (datatab, thy_ref) => if Theory.eq_thy (theory, Theory.deref thy_ref) |
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295 |
then (datatab, thy_ref) |
|
296 |
else (Datatab.empty, Theory.check_thy theory) |
|
297 |
| NONE => (Datatab.empty, Theory.check_thy theory) |
|
34244 | 298 |
val data = case Datatab.lookup datatab kind |
299 |
of SOME data => data |
|
300 |
| NONE => invoke_init kind; |
|
34251 | 301 |
val result as (x, data') = f (dest data); |
34244 | 302 |
val _ = Synchronized.change dataref |
303 |
((K o SOME) (Datatab.update (kind, mk data') datatab, thy_ref)); |
|
304 |
in result end; |
|
31962 | 305 |
|
34251 | 306 |
fun change_data ops theory f = change_yield_data ops theory (f #> pair ()) |> snd; |
31962 | 307 |
|
308 |
end; (*local*) |
|
309 |
||
310 |
||
311 |
(** foundation **) |
|
312 |
||
313 |
(* constants *) |
|
314 |
||
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315 |
fun arity_number thy tyco = case Symtab.lookup ((fst o the_signatures o the_exec) thy) tyco |
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316 |
of SOME n => n |
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317 |
| NONE => Sign.arity_number thy tyco; |
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|
318 |
|
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|
319 |
fun build_tsig thy = |
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320 |
let |
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321 |
val (tycos, _) = (the_signatures o the_exec) thy; |
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|
322 |
val decls = (#types o Type.rep_tsig o Sign.tsig_of) thy |
34272 | 323 |
|> snd |
324 |
|> Symtab.fold (fn (tyco, n) => |
|
325 |
Symtab.update (tyco, Type.LogicalType n)) tycos; |
|
326 |
in |
|
327 |
Type.empty_tsig |
|
328 |
|> Symtab.fold (fn (tyco, Type.LogicalType n) => Type.add_type Name_Space.default_naming |
|
329 |
(Binding.qualified_name tyco, n) | _ => I) decls |
|
330 |
end; |
|
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|
331 |
|
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|
332 |
fun cert_signature thy = Logic.varifyT o Type.cert_typ (build_tsig thy) o Type.no_tvars; |
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|
333 |
|
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|
334 |
fun read_signature thy = cert_signature thy o Type.strip_sorts |
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|
335 |
o Syntax.parse_typ (ProofContext.init thy); |
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|
336 |
|
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|
337 |
fun expand_signature thy = Type.cert_typ_mode Type.mode_syntax (Sign.tsig_of thy); |
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|
338 |
|
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|
339 |
fun lookup_typ thy = Symtab.lookup ((snd o the_signatures o the_exec) thy); |
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|
340 |
|
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|
341 |
fun const_typ thy c = case lookup_typ thy c |
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|
342 |
of SOME ty => ty |
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|
343 |
| NONE => (Type.strip_sorts o Sign.the_const_type thy) c; |
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|
344 |
|
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|
345 |
fun subst_signature thy c ty = |
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|
346 |
let |
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|
347 |
fun mk_subst (Type (tyco, tys1)) (ty2 as Type (tyco2, tys2)) = |
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|
348 |
fold2 mk_subst tys1 tys2 |
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|
349 |
| mk_subst ty (TVar (v, sort)) = Vartab.update (v, ([], ty)) |
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|
350 |
in case lookup_typ thy c |
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|
351 |
of SOME ty' => Envir.subst_type (mk_subst ty (expand_signature thy ty') Vartab.empty) ty' |
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|
352 |
| NONE => ty |
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|
353 |
end; |
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|
354 |
|
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|
355 |
fun subst_signatures thy = map_aterms (fn Const (c, ty) => Const (c, subst_signature thy c ty) | t => t); |
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|
356 |
|
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|
357 |
fun args_number thy = length o fst o strip_type o const_typ thy; |
31962 | 358 |
|
359 |
||
360 |
(* datatypes *) |
|
31156 | 361 |
|
362 |
fun constrset_of_consts thy cs = |
|
363 |
let |
|
364 |
val _ = map (fn (c, _) => if (is_some o AxClass.class_of_param thy) c |
|
365 |
then error ("Is a class parameter: " ^ string_of_const thy c) else ()) cs; |
|
33531 | 366 |
fun no_constr s (c, ty) = error ("Not a datatype constructor:\n" ^ string_of_const thy c |
367 |
^ " :: " ^ string_of_typ thy ty ^ "\n" ^ enclose "(" ")" s); |
|
31156 | 368 |
fun last_typ c_ty ty = |
369 |
let |
|
33531 | 370 |
val tfrees = Term.add_tfreesT ty []; |
31156 | 371 |
val (tyco, vs) = ((apsnd o map) (dest_TFree) o dest_Type o snd o strip_type) ty |
33531 | 372 |
handle TYPE _ => no_constr "bad type" c_ty |
373 |
val _ = if has_duplicates (eq_fst (op =)) vs |
|
374 |
then no_constr "duplicate type variables in datatype" c_ty else (); |
|
375 |
val _ = if length tfrees <> length vs |
|
376 |
then no_constr "type variables missing in datatype" c_ty else (); |
|
31156 | 377 |
in (tyco, vs) end; |
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|
378 |
fun ty_sorts (c, raw_ty) = |
31156 | 379 |
let |
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|
380 |
val ty = subst_signature thy c raw_ty; |
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|
381 |
val ty_decl = (Logic.unvarifyT o const_typ thy) c; |
31156 | 382 |
val (tyco, _) = last_typ (c, ty) ty_decl; |
383 |
val (_, vs) = last_typ (c, ty) ty; |
|
384 |
in ((tyco, map snd vs), (c, (map fst vs, ty))) end; |
|
385 |
fun add ((tyco', sorts'), c) ((tyco, sorts), cs) = |
|
386 |
let |
|
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changeset
|
387 |
val _ = if (tyco' : string) <> tyco |
31156 | 388 |
then error "Different type constructors in constructor set" |
389 |
else (); |
|
390 |
val sorts'' = map2 (curry (Sorts.inter_sort (Sign.classes_of thy))) sorts' sorts |
|
391 |
in ((tyco, sorts), c :: cs) end; |
|
392 |
fun inst vs' (c, (vs, ty)) = |
|
393 |
let |
|
394 |
val the_v = the o AList.lookup (op =) (vs ~~ vs'); |
|
395 |
val ty' = map_atyps (fn TFree (v, _) => TFree (the_v v)) ty; |
|
396 |
in (c, (fst o strip_type) ty') end; |
|
397 |
val c' :: cs' = map ty_sorts cs; |
|
398 |
val ((tyco, sorts), cs'') = fold add cs' (apsnd single c'); |
|
399 |
val vs = Name.names Name.context Name.aT sorts; |
|
400 |
val cs''' = map (inst vs) cs''; |
|
401 |
in (tyco, (vs, rev cs''')) end; |
|
402 |
||
31962 | 403 |
fun get_datatype thy tyco = |
404 |
case these (Symtab.lookup ((the_dtyps o the_exec) thy) tyco) |
|
405 |
of (_, spec) :: _ => spec |
|
33940
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|
406 |
| [] => arity_number thy tyco |
31962 | 407 |
|> Name.invents Name.context Name.aT |
408 |
|> map (rpair []) |
|
409 |
|> rpair []; |
|
410 |
||
411 |
fun get_datatype_of_constr thy c = |
|
33940
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changeset
|
412 |
case (snd o strip_type o const_typ thy) c |
31962 | 413 |
of Type (tyco, _) => if member (op =) ((map fst o snd o get_datatype thy) tyco) c |
414 |
then SOME tyco else NONE |
|
415 |
| _ => NONE; |
|
416 |
||
417 |
fun is_constr thy = is_some o get_datatype_of_constr thy; |
|
418 |
||
31156 | 419 |
|
34874 | 420 |
(* bare code equations *) |
31156 | 421 |
|
422 |
exception BAD_THM of string; |
|
423 |
fun bad_thm msg = raise BAD_THM msg; |
|
424 |
fun error_thm f thm = f thm handle BAD_THM msg => error msg; |
|
31642 | 425 |
fun warning_thm f thm = SOME (f thm) handle BAD_THM msg => (warning msg; NONE) |
31156 | 426 |
fun try_thm f thm = SOME (f thm) handle BAD_THM _ => NONE; |
427 |
||
428 |
fun is_linear thm = |
|
429 |
let val (_, args) = (strip_comb o fst o Logic.dest_equals o Thm.plain_prop_of) thm |
|
430 |
in not (has_duplicates (op =) ((fold o fold_aterms) |
|
431 |
(fn Var (v, _) => cons v | _ => I) args [])) end; |
|
432 |
||
34894 | 433 |
fun gen_assert_eqn thy check_patterns (thm, proper) = |
31156 | 434 |
let |
34894 | 435 |
fun bad s = bad_thm (s ^ ":\n" ^ Display.string_of_thm_global thy thm); |
31156 | 436 |
val (lhs, rhs) = (Logic.dest_equals o Thm.plain_prop_of) thm |
34894 | 437 |
handle TERM _ => bad "Not an equation" |
438 |
| THM _ => bad "Not an equation"; |
|
31156 | 439 |
fun vars_of t = fold_aterms (fn Var (v, _) => insert (op =) v |
34894 | 440 |
| Free _ => bad "Illegal free variable in equation" |
31156 | 441 |
| _ => I) t []; |
442 |
fun tvars_of t = fold_term_types (fn _ => |
|
443 |
fold_atyps (fn TVar (v, _) => insert (op =) v |
|
34894 | 444 |
| TFree _ => bad "Illegal free type variable in equation")) t []; |
31156 | 445 |
val lhs_vs = vars_of lhs; |
446 |
val rhs_vs = vars_of rhs; |
|
447 |
val lhs_tvs = tvars_of lhs; |
|
448 |
val rhs_tvs = tvars_of rhs; |
|
449 |
val _ = if null (subtract (op =) lhs_vs rhs_vs) |
|
450 |
then () |
|
34894 | 451 |
else bad "Free variables on right hand side of equation"; |
31156 | 452 |
val _ = if null (subtract (op =) lhs_tvs rhs_tvs) |
453 |
then () |
|
34894 | 454 |
else bad "Free type variables on right hand side of equation"; |
455 |
val (head, args) = strip_comb lhs; |
|
31156 | 456 |
val (c, ty) = case head |
457 |
of Const (c_ty as (_, ty)) => (AxClass.unoverload_const thy c_ty, ty) |
|
34894 | 458 |
| _ => bad "Equation not headed by constant"; |
459 |
fun check _ (Abs _) = bad "Abstraction on left hand side of equation" |
|
31156 | 460 |
| check 0 (Var _) = () |
34894 | 461 |
| check _ (Var _) = bad "Variable with application on left hand side of equation" |
31156 | 462 |
| check n (t1 $ t2) = (check (n+1) t1; check 0 t2) |
34894 | 463 |
| check n (Const (c_ty as (c, ty))) = |
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changeset
|
464 |
let |
317933ce3712
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parents:
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diff
changeset
|
465 |
val c' = AxClass.unoverload_const thy c_ty |
317933ce3712
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parents:
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changeset
|
466 |
in if n = (length o fst o strip_type o subst_signature thy c') ty |
34894 | 467 |
then if not proper orelse not check_patterns orelse is_constr thy c' |
33940
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parents:
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diff
changeset
|
468 |
then () |
34894 | 469 |
else bad (quote c ^ " is not a constructor, on left hand side of equation") |
470 |
else bad ("Partially applied constant " ^ quote c ^ " on left hand side of equation") |
|
33940
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haftmann
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changeset
|
471 |
end; |
31156 | 472 |
val _ = map (check 0) args; |
473 |
val _ = if not proper orelse is_linear thm then () |
|
34894 | 474 |
else bad "Duplicate variables on left hand side of equation"; |
475 |
val _ = if (is_none o AxClass.class_of_param thy) c then () |
|
476 |
else bad "Overloaded constant as head in equation"; |
|
477 |
val _ = if not (is_constr thy c) then () |
|
478 |
else bad "Constructor as head in equation"; |
|
31156 | 479 |
val ty_decl = Sign.the_const_type thy c; |
480 |
val _ = if Sign.typ_equiv thy (Type.strip_sorts ty_decl, Type.strip_sorts ty) |
|
481 |
then () else bad_thm ("Type\n" ^ string_of_typ thy ty |
|
34894 | 482 |
^ "\nof equation\n" |
483 |
^ Display.string_of_thm_global thy thm |
|
484 |
^ "\nis incompatible with declared function type\n" |
|
485 |
^ string_of_typ thy ty_decl) |
|
31156 | 486 |
in (thm, proper) end; |
487 |
||
34894 | 488 |
fun assert_eqn thy = error_thm (gen_assert_eqn thy true); |
31962 | 489 |
|
490 |
fun meta_rewrite thy = LocalDefs.meta_rewrite_rule (ProofContext.init thy); |
|
31156 | 491 |
|
34894 | 492 |
fun mk_eqn thy = error_thm (gen_assert_eqn thy false) o |
31962 | 493 |
apfst (meta_rewrite thy); |
494 |
||
495 |
fun mk_eqn_warning thy = Option.map (fn (thm, _) => (thm, is_linear thm)) |
|
34894 | 496 |
o warning_thm (gen_assert_eqn thy false) o rpair false o meta_rewrite thy; |
31962 | 497 |
|
498 |
fun mk_eqn_liberal thy = Option.map (fn (thm, _) => (thm, is_linear thm)) |
|
34894 | 499 |
o try_thm (gen_assert_eqn thy false) o rpair false o meta_rewrite thy; |
31156 | 500 |
|
33940
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diff
changeset
|
501 |
val head_eqn = dest_Const o fst o strip_comb o fst o Logic.dest_equals o Thm.plain_prop_of; |
31156 | 502 |
|
31957 | 503 |
fun const_typ_eqn thy thm = |
31156 | 504 |
let |
32640
ba6531df2c64
corrected order of type variables in code equations; more precise certificate for cases
haftmann
parents:
32544
diff
changeset
|
505 |
val (c, ty) = head_eqn thm; |
31156 | 506 |
val c' = AxClass.unoverload_const thy (c, ty); |
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diff
changeset
|
507 |
(*permissive wrt. to overloaded constants!*) |
31156 | 508 |
in (c', ty) end; |
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changeset
|
509 |
|
31957 | 510 |
fun const_eqn thy = fst o const_typ_eqn thy; |
31156 | 511 |
|
34874 | 512 |
fun logical_typscheme thy (c, ty) = |
32873 | 513 |
(map dest_TFree (Sign.const_typargs thy (c, ty)), Type.strip_sorts ty); |
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diff
changeset
|
514 |
|
34874 | 515 |
fun typscheme thy (c, ty) = logical_typscheme thy (c, subst_signature thy c ty); |
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haftmann
parents:
33756
diff
changeset
|
516 |
|
34895 | 517 |
|
518 |
(* technical transformations of code equations *) |
|
519 |
||
520 |
fun expand_eta thy k thm = |
|
521 |
let |
|
522 |
val (lhs, rhs) = (Logic.dest_equals o Thm.plain_prop_of) thm; |
|
523 |
val (_, args) = strip_comb lhs; |
|
524 |
val l = if k = ~1 |
|
525 |
then (length o fst o strip_abs) rhs |
|
526 |
else Int.max (0, k - length args); |
|
527 |
val (raw_vars, _) = Term.strip_abs_eta l rhs; |
|
528 |
val vars = burrow_fst (Name.variant_list (map (fst o fst) (Term.add_vars lhs []))) |
|
529 |
raw_vars; |
|
530 |
fun expand (v, ty) thm = Drule.fun_cong_rule thm |
|
531 |
(Thm.cterm_of thy (Var ((v, 0), ty))); |
|
532 |
in |
|
533 |
thm |
|
534 |
|> fold expand vars |
|
535 |
|> Conv.fconv_rule Drule.beta_eta_conversion |
|
536 |
end; |
|
537 |
||
538 |
fun same_arity thy thms = |
|
31962 | 539 |
let |
34895 | 540 |
val num_args_of = length o snd o strip_comb o fst o Logic.dest_equals; |
541 |
val k = fold (Integer.max o num_args_of o Thm.prop_of) thms 0; |
|
542 |
in map (expand_eta thy k) thms end; |
|
543 |
||
544 |
fun mk_desymbolization pre post mk vs = |
|
545 |
let |
|
546 |
val names = map (pre o fst o fst) vs |
|
547 |
|> map (Name.desymbolize false) |
|
548 |
|> Name.variant_list [] |
|
549 |
|> map post; |
|
550 |
in map_filter (fn (((v, i), x), v') => |
|
551 |
if v = v' andalso i = 0 then NONE |
|
552 |
else SOME (((v, i), x), mk ((v', 0), x))) (vs ~~ names) |
|
553 |
end; |
|
554 |
||
555 |
fun desymbolize_tvars thy thms = |
|
556 |
let |
|
557 |
val tvs = fold (Term.add_tvars o Thm.prop_of) thms []; |
|
558 |
val tvar_subst = mk_desymbolization (unprefix "'") (prefix "'") TVar tvs; |
|
559 |
in map (Thm.certify_instantiate (tvar_subst, [])) thms end; |
|
560 |
||
561 |
fun desymbolize_vars thy thm = |
|
562 |
let |
|
563 |
val vs = Term.add_vars (Thm.prop_of thm) []; |
|
564 |
val var_subst = mk_desymbolization I I Var vs; |
|
565 |
in Thm.certify_instantiate ([], var_subst) thm end; |
|
566 |
||
567 |
fun canonize_thms thy = desymbolize_tvars thy #> same_arity thy #> map (desymbolize_vars thy); |
|
31156 | 568 |
|
34874 | 569 |
|
570 |
(* code equation certificates *) |
|
571 |
||
34895 | 572 |
fun build_head thy (c, ty) = |
573 |
Thm.cterm_of thy (Logic.mk_equals (Free ("HEAD", ty), Const (c, ty))); |
|
34874 | 574 |
|
34895 | 575 |
fun get_head thy cert_thm = |
576 |
let |
|
577 |
val [head] = (#hyps o Thm.crep_thm) cert_thm; |
|
578 |
val (_, Const (c, ty)) = (Logic.dest_equals o Thm.term_of) head; |
|
579 |
in (typscheme thy (c, ty), head) end; |
|
580 |
||
581 |
abstype cert = Cert of thm * bool list with |
|
34891
99b9a6290446
code certificates as integral part of code generation
haftmann
parents:
34874
diff
changeset
|
582 |
|
99b9a6290446
code certificates as integral part of code generation
haftmann
parents:
34874
diff
changeset
|
583 |
fun empty_cert thy c = |
99b9a6290446
code certificates as integral part of code generation
haftmann
parents:
34874
diff
changeset
|
584 |
let |
99b9a6290446
code certificates as integral part of code generation
haftmann
parents:
34874
diff
changeset
|
585 |
val raw_ty = const_typ thy c; |
99b9a6290446
code certificates as integral part of code generation
haftmann
parents:
34874
diff
changeset
|
586 |
val tvars = Term.add_tvar_namesT raw_ty []; |
99b9a6290446
code certificates as integral part of code generation
haftmann
parents:
34874
diff
changeset
|
587 |
val tvars' = case AxClass.class_of_param thy c |
99b9a6290446
code certificates as integral part of code generation
haftmann
parents:
34874
diff
changeset
|
588 |
of SOME class => [TFree (Name.aT, [class])] |
99b9a6290446
code certificates as integral part of code generation
haftmann
parents:
34874
diff
changeset
|
589 |
| NONE => Name.invent_list [] Name.aT (length tvars) |
99b9a6290446
code certificates as integral part of code generation
haftmann
parents:
34874
diff
changeset
|
590 |
|> map (fn v => TFree (v, [])); |
99b9a6290446
code certificates as integral part of code generation
haftmann
parents:
34874
diff
changeset
|
591 |
val ty = typ_subst_TVars (tvars ~~ tvars') raw_ty; |
34895 | 592 |
val chead = build_head thy (c, ty); |
593 |
in Cert (Thm.weaken chead Drule.dummy_thm, []) end; |
|
34891
99b9a6290446
code certificates as integral part of code generation
haftmann
parents:
34874
diff
changeset
|
594 |
|
99b9a6290446
code certificates as integral part of code generation
haftmann
parents:
34874
diff
changeset
|
595 |
fun cert_of_eqns thy c [] = empty_cert thy c |
34895 | 596 |
| cert_of_eqns thy c raw_eqns = |
34874 | 597 |
let |
34895 | 598 |
val eqns = burrow_fst (canonize_thms thy) raw_eqns; |
599 |
val _ = map (assert_eqn thy) eqns; |
|
34891
99b9a6290446
code certificates as integral part of code generation
haftmann
parents:
34874
diff
changeset
|
600 |
val (thms, propers) = split_list eqns; |
34895 | 601 |
val _ = map (fn thm => if c = const_eqn thy thm then () |
602 |
else error ("Wrong head of code equation,\nexpected constant " |
|
603 |
^ string_of_const thy c ^ "\n" ^ Display.string_of_thm_global thy thm)) thms; |
|
34891
99b9a6290446
code certificates as integral part of code generation
haftmann
parents:
34874
diff
changeset
|
604 |
fun tvars_of T = rev (Term.add_tvarsT T []); |
99b9a6290446
code certificates as integral part of code generation
haftmann
parents:
34874
diff
changeset
|
605 |
val vss = map (tvars_of o snd o head_eqn) thms; |
99b9a6290446
code certificates as integral part of code generation
haftmann
parents:
34874
diff
changeset
|
606 |
fun inter_sorts vs = |
99b9a6290446
code certificates as integral part of code generation
haftmann
parents:
34874
diff
changeset
|
607 |
fold (curry (Sorts.inter_sort (Sign.classes_of thy)) o snd) vs []; |
99b9a6290446
code certificates as integral part of code generation
haftmann
parents:
34874
diff
changeset
|
608 |
val sorts = map_transpose inter_sorts vss; |
99b9a6290446
code certificates as integral part of code generation
haftmann
parents:
34874
diff
changeset
|
609 |
val vts = Name.names Name.context Name.aT sorts; |
99b9a6290446
code certificates as integral part of code generation
haftmann
parents:
34874
diff
changeset
|
610 |
val thms as thm :: _ = |
99b9a6290446
code certificates as integral part of code generation
haftmann
parents:
34874
diff
changeset
|
611 |
map2 (fn vs => Thm.certify_instantiate (vs ~~ map TFree vts, [])) vss thms; |
34895 | 612 |
val head_thm = Thm.symmetric (Thm.assume (build_head thy (head_eqn (hd thms)))); |
34874 | 613 |
fun head_conv ct = if can Thm.dest_comb ct |
614 |
then Conv.fun_conv head_conv ct |
|
615 |
else Conv.rewr_conv head_thm ct; |
|
616 |
val rewrite_head = Conv.fconv_rule (Conv.arg1_conv head_conv); |
|
34891
99b9a6290446
code certificates as integral part of code generation
haftmann
parents:
34874
diff
changeset
|
617 |
val cert_thm = Conjunction.intr_balanced (map rewrite_head thms); |
34895 | 618 |
in Cert (cert_thm, propers) end; |
34891
99b9a6290446
code certificates as integral part of code generation
haftmann
parents:
34874
diff
changeset
|
619 |
|
34895 | 620 |
fun constrain_cert thy sorts (Cert (cert_thm, propers)) = |
34874 | 621 |
let |
34895 | 622 |
val ((vs, _), head) = get_head thy cert_thm; |
623 |
val subst = map2 (fn (v, sort) => fn sort' => |
|
624 |
(v, Sorts.inter_sort (Sign.classes_of thy) (sort, sort'))) vs sorts; |
|
625 |
val head' = Thm.term_of head |
|
626 |
|> (map_types o map_atyps) |
|
627 |
(fn TFree (v, _) => TFree (v, the (AList.lookup (op =) subst v))) |
|
628 |
|> Thm.cterm_of thy; |
|
629 |
val inst = map2 (fn (v, sort) => fn (_, sort') => |
|
630 |
(((v, 0), sort), TFree (v, sort'))) vs subst; |
|
34891
99b9a6290446
code certificates as integral part of code generation
haftmann
parents:
34874
diff
changeset
|
631 |
val cert_thm' = cert_thm |
34895 | 632 |
|> Thm.implies_intr head |
34891
99b9a6290446
code certificates as integral part of code generation
haftmann
parents:
34874
diff
changeset
|
633 |
|> Thm.varifyT |
34895 | 634 |
|> Thm.certify_instantiate (inst, []) |
635 |
|> Thm.elim_implies (Thm.assume head'); |
|
636 |
in (Cert (cert_thm', propers)) end; |
|
34874 | 637 |
|
34895 | 638 |
fun typscheme_cert thy (Cert (cert_thm, _)) = |
639 |
fst (get_head thy cert_thm); |
|
34874 | 640 |
|
34895 | 641 |
fun equations_cert thy (cert as Cert (cert_thm, propers)) = |
34891
99b9a6290446
code certificates as integral part of code generation
haftmann
parents:
34874
diff
changeset
|
642 |
let |
34895 | 643 |
val tyscm = typscheme_cert thy cert; |
644 |
val equations = if null propers then [] else |
|
645 |
Thm.prop_of cert_thm |
|
34891
99b9a6290446
code certificates as integral part of code generation
haftmann
parents:
34874
diff
changeset
|
646 |
|> Logic.dest_conjunction_balanced (length propers) |
99b9a6290446
code certificates as integral part of code generation
haftmann
parents:
34874
diff
changeset
|
647 |
|> map Logic.dest_equals |
99b9a6290446
code certificates as integral part of code generation
haftmann
parents:
34874
diff
changeset
|
648 |
|> (map o apfst) (snd o strip_comb) |
34895 | 649 |
in (tyscm, equations) end; |
650 |
||
651 |
fun equations_thms_cert thy (cert as Cert (cert_thm, propers)) = |
|
652 |
let |
|
653 |
val (tyscm, equations) = equations_cert thy cert; |
|
654 |
val thms = if null propers then [] else |
|
655 |
cert_thm |
|
656 |
|> LocalDefs.expand [snd (get_head thy cert_thm)] |
|
657 |
|> Thm.varifyT |
|
658 |
|> Conjunction.elim_balanced (length propers) |
|
659 |
in (tyscm, equations ~~ (thms ~~ propers)) end; |
|
660 |
||
661 |
fun pretty_cert thy = map (Display.pretty_thm_global thy o AxClass.overload thy o fst o snd) |
|
662 |
o snd o equations_thms_cert thy; |
|
663 |
||
664 |
end; |
|
34891
99b9a6290446
code certificates as integral part of code generation
haftmann
parents:
34874
diff
changeset
|
665 |
|
34874 | 666 |
|
667 |
(* code equation access *) |
|
668 |
||
34891
99b9a6290446
code certificates as integral part of code generation
haftmann
parents:
34874
diff
changeset
|
669 |
fun get_cert thy f c = |
34244 | 670 |
Symtab.lookup ((the_eqns o the_exec) thy) c |
671 |
|> Option.map (snd o snd o fst) |
|
672 |
|> these |
|
31962 | 673 |
|> (map o apfst) (Thm.transfer thy) |
34891
99b9a6290446
code certificates as integral part of code generation
haftmann
parents:
34874
diff
changeset
|
674 |
|> f |
99b9a6290446
code certificates as integral part of code generation
haftmann
parents:
34874
diff
changeset
|
675 |
|> (map o apfst) (AxClass.unoverload thy) |
99b9a6290446
code certificates as integral part of code generation
haftmann
parents:
34874
diff
changeset
|
676 |
|> cert_of_eqns thy c; |
31962 | 677 |
|
678 |
||
679 |
(* cases *) |
|
31156 | 680 |
|
681 |
fun case_certificate thm = |
|
682 |
let |
|
683 |
val ((head, raw_case_expr), cases) = (apfst Logic.dest_equals |
|
32640
ba6531df2c64
corrected order of type variables in code equations; more precise certificate for cases
haftmann
parents:
32544
diff
changeset
|
684 |
o apsnd Logic.dest_conjunctions o Logic.dest_implies o Thm.plain_prop_of) thm; |
31156 | 685 |
val _ = case head of Free _ => true |
686 |
| Var _ => true |
|
687 |
| _ => raise TERM ("case_cert", []); |
|
688 |
val ([(case_var, _)], case_expr) = Term.strip_abs_eta 1 raw_case_expr; |
|
689 |
val (Const (case_const, _), raw_params) = strip_comb case_expr; |
|
690 |
val n = find_index (fn Free (v, _) => v = case_var | _ => false) raw_params; |
|
691 |
val _ = if n = ~1 then raise TERM ("case_cert", []) else (); |
|
692 |
val params = map (fst o dest_Var) (nth_drop n raw_params); |
|
693 |
fun dest_case t = |
|
694 |
let |
|
695 |
val (head' $ t_co, rhs) = Logic.dest_equals t; |
|
696 |
val _ = if head' = head then () else raise TERM ("case_cert", []); |
|
697 |
val (Const (co, _), args) = strip_comb t_co; |
|
698 |
val (Var (param, _), args') = strip_comb rhs; |
|
699 |
val _ = if args' = args then () else raise TERM ("case_cert", []); |
|
700 |
in (param, co) end; |
|
701 |
fun analyze_cases cases = |
|
702 |
let |
|
703 |
val co_list = fold (AList.update (op =) o dest_case) cases []; |
|
704 |
in map (the o AList.lookup (op =) co_list) params end; |
|
705 |
fun analyze_let t = |
|
706 |
let |
|
707 |
val (head' $ arg, Var (param', _) $ arg') = Logic.dest_equals t; |
|
708 |
val _ = if head' = head then () else raise TERM ("case_cert", []); |
|
709 |
val _ = if arg' = arg then () else raise TERM ("case_cert", []); |
|
710 |
val _ = if [param'] = params then () else raise TERM ("case_cert", []); |
|
711 |
in [] end; |
|
712 |
fun analyze (cases as [let_case]) = |
|
713 |
(analyze_cases cases handle Bind => analyze_let let_case) |
|
714 |
| analyze cases = analyze_cases cases; |
|
715 |
in (case_const, (n, analyze cases)) end; |
|
716 |
||
717 |
fun case_cert thm = case_certificate thm |
|
718 |
handle Bind => error "bad case certificate" |
|
719 |
| TERM _ => error "bad case certificate"; |
|
720 |
||
31962 | 721 |
fun get_case_scheme thy = Symtab.lookup ((fst o the_cases o the_exec) thy); |
24219 | 722 |
|
31962 | 723 |
val undefineds = Symtab.keys o snd o the_cases o the_exec; |
24219 | 724 |
|
725 |
||
31962 | 726 |
(* diagnostic *) |
24219 | 727 |
|
728 |
fun print_codesetup thy = |
|
729 |
let |
|
730 |
val ctxt = ProofContext.init thy; |
|
24844
98c006a30218
certificates for code generator case expressions
haftmann
parents:
24837
diff
changeset
|
731 |
val exec = the_exec thy; |
33006 | 732 |
fun pretty_eqns (s, (_, eqns)) = |
24219 | 733 |
(Pretty.block o Pretty.fbreaks) ( |
33006 | 734 |
Pretty.str s :: map (Display.pretty_thm ctxt o fst) eqns |
24219 | 735 |
); |
736 |
fun pretty_dtyp (s, []) = |
|
737 |
Pretty.str s |
|
738 |
| pretty_dtyp (s, cos) = |
|
739 |
(Pretty.block o Pretty.breaks) ( |
|
740 |
Pretty.str s |
|
741 |
:: Pretty.str "=" |
|
31156 | 742 |
:: separate (Pretty.str "|") (map (fn (c, []) => Pretty.str (string_of_const thy c) |
24219 | 743 |
| (c, tys) => |
744 |
(Pretty.block o Pretty.breaks) |
|
31156 | 745 |
(Pretty.str (string_of_const thy c) |
26947
133905a0c493
moved global pretty/string_of functions from Sign to Syntax;
wenzelm
parents:
26928
diff
changeset
|
746 |
:: Pretty.str "of" |
133905a0c493
moved global pretty/string_of functions from Sign to Syntax;
wenzelm
parents:
26928
diff
changeset
|
747 |
:: map (Pretty.quote o Syntax.pretty_typ_global thy) tys)) cos) |
24219 | 748 |
); |
28368 | 749 |
val eqns = the_eqns exec |
24423
ae9cd0e92423
overloaded definitions accompanied by explicit constants
haftmann
parents:
24283
diff
changeset
|
750 |
|> Symtab.dest |
31156 | 751 |
|> (map o apfst) (string_of_const thy) |
28695 | 752 |
|> (map o apsnd) (snd o fst) |
24219 | 753 |
|> sort (string_ord o pairself fst); |
754 |
val dtyps = the_dtyps exec |
|
755 |
|> Symtab.dest |
|
28695 | 756 |
|> map (fn (dtco, (_, (vs, cos)) :: _) => |
31957 | 757 |
(string_of_typ thy (Type (dtco, map TFree vs)), cos)) |
24219 | 758 |
|> sort (string_ord o pairself fst) |
759 |
in |
|
760 |
(Pretty.writeln o Pretty.chunks) [ |
|
761 |
Pretty.block ( |
|
30023
55954f726043
permissive check for pattern discipline in case schemes
haftmann
parents:
29970
diff
changeset
|
762 |
Pretty.str "code equations:" |
24219 | 763 |
:: Pretty.fbrk |
33006 | 764 |
:: (Pretty.fbreaks o map pretty_eqns) eqns |
24219 | 765 |
), |
25968 | 766 |
Pretty.block ( |
24219 | 767 |
Pretty.str "datatypes:" |
768 |
:: Pretty.fbrk |
|
769 |
:: (Pretty.fbreaks o map pretty_dtyp) dtyps |
|
770 |
) |
|
771 |
] |
|
772 |
end; |
|
773 |
||
774 |
||
31962 | 775 |
(** declaring executable ingredients **) |
776 |
||
33940
317933ce3712
crude support for type aliasses and corresponding constant signatures
haftmann
parents:
33756
diff
changeset
|
777 |
(* constant signatures *) |
317933ce3712
crude support for type aliasses and corresponding constant signatures
haftmann
parents:
33756
diff
changeset
|
778 |
|
317933ce3712
crude support for type aliasses and corresponding constant signatures
haftmann
parents:
33756
diff
changeset
|
779 |
fun add_type tyco thy = |
317933ce3712
crude support for type aliasses and corresponding constant signatures
haftmann
parents:
33756
diff
changeset
|
780 |
case Symtab.lookup ((snd o #types o Type.rep_tsig o Sign.tsig_of) thy) tyco |
317933ce3712
crude support for type aliasses and corresponding constant signatures
haftmann
parents:
33756
diff
changeset
|
781 |
of SOME (Type.Abbreviation (vs, _, _)) => |
34173
458ced35abb8
reduced code generator cache to the baremost minimum
haftmann
parents:
33977
diff
changeset
|
782 |
(map_exec_purge o map_signatures o apfst) |
33940
317933ce3712
crude support for type aliasses and corresponding constant signatures
haftmann
parents:
33756
diff
changeset
|
783 |
(Symtab.update (tyco, length vs)) thy |
317933ce3712
crude support for type aliasses and corresponding constant signatures
haftmann
parents:
33756
diff
changeset
|
784 |
| _ => error ("No such type abbreviation: " ^ quote tyco); |
317933ce3712
crude support for type aliasses and corresponding constant signatures
haftmann
parents:
33756
diff
changeset
|
785 |
|
317933ce3712
crude support for type aliasses and corresponding constant signatures
haftmann
parents:
33756
diff
changeset
|
786 |
fun add_type_cmd s thy = add_type (Sign.intern_type thy s) thy; |
317933ce3712
crude support for type aliasses and corresponding constant signatures
haftmann
parents:
33756
diff
changeset
|
787 |
|
317933ce3712
crude support for type aliasses and corresponding constant signatures
haftmann
parents:
33756
diff
changeset
|
788 |
fun gen_add_signature prep_const prep_signature (raw_c, raw_ty) thy = |
317933ce3712
crude support for type aliasses and corresponding constant signatures
haftmann
parents:
33756
diff
changeset
|
789 |
let |
317933ce3712
crude support for type aliasses and corresponding constant signatures
haftmann
parents:
33756
diff
changeset
|
790 |
val c = prep_const thy raw_c; |
317933ce3712
crude support for type aliasses and corresponding constant signatures
haftmann
parents:
33756
diff
changeset
|
791 |
val ty = prep_signature thy raw_ty; |
317933ce3712
crude support for type aliasses and corresponding constant signatures
haftmann
parents:
33756
diff
changeset
|
792 |
val ty' = expand_signature thy ty; |
317933ce3712
crude support for type aliasses and corresponding constant signatures
haftmann
parents:
33756
diff
changeset
|
793 |
val ty'' = Sign.the_const_type thy c; |
317933ce3712
crude support for type aliasses and corresponding constant signatures
haftmann
parents:
33756
diff
changeset
|
794 |
val _ = if typ_equiv (ty', ty'') then () else |
317933ce3712
crude support for type aliasses and corresponding constant signatures
haftmann
parents:
33756
diff
changeset
|
795 |
error ("Illegal constant signature: " ^ Syntax.string_of_typ_global thy ty); |
317933ce3712
crude support for type aliasses and corresponding constant signatures
haftmann
parents:
33756
diff
changeset
|
796 |
in |
317933ce3712
crude support for type aliasses and corresponding constant signatures
haftmann
parents:
33756
diff
changeset
|
797 |
thy |
34173
458ced35abb8
reduced code generator cache to the baremost minimum
haftmann
parents:
33977
diff
changeset
|
798 |
|> (map_exec_purge o map_signatures o apsnd) (Symtab.update (c, ty)) |
33940
317933ce3712
crude support for type aliasses and corresponding constant signatures
haftmann
parents:
33756
diff
changeset
|
799 |
end; |
317933ce3712
crude support for type aliasses and corresponding constant signatures
haftmann
parents:
33756
diff
changeset
|
800 |
|
317933ce3712
crude support for type aliasses and corresponding constant signatures
haftmann
parents:
33756
diff
changeset
|
801 |
val add_signature = gen_add_signature (K I) cert_signature; |
317933ce3712
crude support for type aliasses and corresponding constant signatures
haftmann
parents:
33756
diff
changeset
|
802 |
val add_signature_cmd = gen_add_signature read_const read_signature; |
317933ce3712
crude support for type aliasses and corresponding constant signatures
haftmann
parents:
33756
diff
changeset
|
803 |
|
317933ce3712
crude support for type aliasses and corresponding constant signatures
haftmann
parents:
33756
diff
changeset
|
804 |
|
31962 | 805 |
(* code equations *) |
806 |
||
33075 | 807 |
fun gen_add_eqn default (thm, proper) thy = |
808 |
let |
|
809 |
val thm' = Thm.close_derivation thm; |
|
810 |
val c = const_eqn thy thm'; |
|
811 |
in change_eqns false c (add_thm thy default (thm', proper)) thy end; |
|
31962 | 812 |
|
813 |
fun add_eqn thm thy = |
|
814 |
gen_add_eqn false (mk_eqn thy (thm, true)) thy; |
|
815 |
||
816 |
fun add_warning_eqn thm thy = |
|
817 |
case mk_eqn_warning thy thm |
|
818 |
of SOME eqn => gen_add_eqn false eqn thy |
|
819 |
| NONE => thy; |
|
820 |
||
821 |
fun add_default_eqn thm thy = |
|
822 |
case mk_eqn_liberal thy thm |
|
823 |
of SOME eqn => gen_add_eqn true eqn thy |
|
824 |
| NONE => thy; |
|
825 |
||
826 |
fun add_nbe_eqn thm thy = |
|
827 |
gen_add_eqn false (mk_eqn thy (thm, false)) thy; |
|
828 |
||
829 |
val add_default_eqn_attribute = Thm.declaration_attribute |
|
830 |
(fn thm => Context.mapping (add_default_eqn thm) I); |
|
831 |
val add_default_eqn_attrib = Attrib.internal (K add_default_eqn_attribute); |
|
832 |
||
833 |
fun del_eqn thm thy = case mk_eqn_liberal thy thm |
|
834 |
of SOME (thm, _) => change_eqns true (const_eqn thy thm) (del_thm thm) thy |
|
835 |
| NONE => thy; |
|
836 |
||
34244 | 837 |
fun del_eqns c = change_eqns true c (K (false, [])); |
838 |
||
839 |
||
840 |
(* cases *) |
|
841 |
||
842 |
fun add_case thm thy = |
|
843 |
let |
|
844 |
val (c, (k, case_pats)) = case_cert thm; |
|
845 |
val _ = case filter_out (is_constr thy) case_pats |
|
846 |
of [] => () |
|
847 |
| cs => error ("Non-constructor(s) in case certificate: " ^ commas (map quote cs)); |
|
848 |
val entry = (1 + Int.max (1, length case_pats), (k, case_pats)) |
|
849 |
in (map_exec_purge o map_cases o apfst) (Symtab.update (c, entry)) thy end; |
|
850 |
||
851 |
fun add_undefined c thy = |
|
852 |
(map_exec_purge o map_cases o apsnd) (Symtab.update (c, ())) thy; |
|
853 |
||
854 |
||
855 |
(* datatypes *) |
|
856 |
||
857 |
structure Type_Interpretation = |
|
858 |
Interpretation(type T = string * serial val eq = eq_snd (op =) : T * T -> bool); |
|
859 |
||
860 |
fun add_datatype raw_cs thy = |
|
861 |
let |
|
862 |
val cs = map (fn c_ty as (_, ty) => (AxClass.unoverload_const thy c_ty, ty)) raw_cs; |
|
863 |
val (tyco, vs_cos) = constrset_of_consts thy cs; |
|
864 |
val old_cs = (map fst o snd o get_datatype thy) tyco; |
|
865 |
fun drop_outdated_cases cases = fold Symtab.delete_safe |
|
866 |
(Symtab.fold (fn (c, (_, (_, cos))) => |
|
867 |
if exists (member (op =) old_cs) cos |
|
868 |
then insert (op =) c else I) cases []) cases; |
|
869 |
in |
|
870 |
thy |
|
871 |
|> fold (del_eqns o fst) cs |
|
872 |
|> map_exec_purge |
|
873 |
((map_dtyps o Symtab.map_default (tyco, [])) (cons (serial (), vs_cos)) |
|
874 |
#> (map_cases o apfst) drop_outdated_cases) |
|
875 |
|> Type_Interpretation.data (tyco, serial ()) |
|
876 |
end; |
|
877 |
||
878 |
fun type_interpretation f = Type_Interpretation.interpretation |
|
879 |
(fn (tyco, _) => fn thy => f (tyco, get_datatype thy tyco) thy); |
|
880 |
||
881 |
fun add_datatype_cmd raw_cs thy = |
|
882 |
let |
|
883 |
val cs = map (read_bare_const thy) raw_cs; |
|
884 |
in add_datatype cs thy end; |
|
885 |
||
886 |
||
32070 | 887 |
(* c.f. src/HOL/Tools/recfun_codegen.ML *) |
888 |
||
33522 | 889 |
structure Code_Target_Attr = Theory_Data |
890 |
( |
|
31998
2c7a24f74db9
code attributes use common underscore convention
haftmann
parents:
31971
diff
changeset
|
891 |
type T = (string -> thm -> theory -> theory) option; |
2c7a24f74db9
code attributes use common underscore convention
haftmann
parents:
31971
diff
changeset
|
892 |
val empty = NONE; |
2c7a24f74db9
code attributes use common underscore convention
haftmann
parents:
31971
diff
changeset
|
893 |
val extend = I; |
33522 | 894 |
fun merge (f1, f2) = if is_some f1 then f1 else f2; |
31998
2c7a24f74db9
code attributes use common underscore convention
haftmann
parents:
31971
diff
changeset
|
895 |
); |
2c7a24f74db9
code attributes use common underscore convention
haftmann
parents:
31971
diff
changeset
|
896 |
|
32070 | 897 |
fun set_code_target_attr f = Code_Target_Attr.map (K (SOME f)); |
898 |
||
899 |
fun code_target_attr prefix thm thy = |
|
900 |
let |
|
901 |
val attr = the_default ((K o K) I) (Code_Target_Attr.get thy); |
|
902 |
in thy |> add_warning_eqn thm |> attr prefix thm end; |
|
903 |
(* setup *) |
|
31998
2c7a24f74db9
code attributes use common underscore convention
haftmann
parents:
31971
diff
changeset
|
904 |
|
31962 | 905 |
val _ = Context.>> (Context.map_theory |
906 |
(let |
|
907 |
fun mk_attribute f = Thm.declaration_attribute (fn thm => Context.mapping (f thm) I); |
|
31998
2c7a24f74db9
code attributes use common underscore convention
haftmann
parents:
31971
diff
changeset
|
908 |
val code_attribute_parser = |
2c7a24f74db9
code attributes use common underscore convention
haftmann
parents:
31971
diff
changeset
|
909 |
Args.del |-- Scan.succeed (mk_attribute del_eqn) |
2c7a24f74db9
code attributes use common underscore convention
haftmann
parents:
31971
diff
changeset
|
910 |
|| Args.$$$ "nbe" |-- Scan.succeed (mk_attribute add_nbe_eqn) |
2c7a24f74db9
code attributes use common underscore convention
haftmann
parents:
31971
diff
changeset
|
911 |
|| (Args.$$$ "target" |-- Args.colon |-- Args.name >> |
32070 | 912 |
(mk_attribute o code_target_attr)) |
31998
2c7a24f74db9
code attributes use common underscore convention
haftmann
parents:
31971
diff
changeset
|
913 |
|| Scan.succeed (mk_attribute add_warning_eqn); |
31962 | 914 |
in |
915 |
Type_Interpretation.init |
|
31998
2c7a24f74db9
code attributes use common underscore convention
haftmann
parents:
31971
diff
changeset
|
916 |
#> Attrib.setup (Binding.name "code") (Scan.lift code_attribute_parser) |
2c7a24f74db9
code attributes use common underscore convention
haftmann
parents:
31971
diff
changeset
|
917 |
"declare theorems for code generation" |
31962 | 918 |
end)); |
919 |
||
24219 | 920 |
end; (*struct*) |
921 |
||
922 |
||
32661
f4d179d91af2
experimenting to add some useful interface for definitions
bulwahn
parents:
32640
diff
changeset
|
923 |
(** type-safe interfaces for data dependent on executable code **) |
24219 | 924 |
|
34173
458ced35abb8
reduced code generator cache to the baremost minimum
haftmann
parents:
33977
diff
changeset
|
925 |
functor Code_Data(Data: CODE_DATA_ARGS): CODE_DATA = |
24219 | 926 |
struct |
927 |
||
928 |
type T = Data.T; |
|
929 |
exception Data of T; |
|
930 |
fun dest (Data x) = x |
|
931 |
||
34173
458ced35abb8
reduced code generator cache to the baremost minimum
haftmann
parents:
33977
diff
changeset
|
932 |
val kind = Code.declare_data (Data Data.empty); |
24219 | 933 |
|
934 |
val data_op = (kind, Data, dest); |
|
935 |
||
936 |
val change = Code.change_data data_op; |
|
937 |
fun change_yield thy = Code.change_yield_data data_op thy; |
|
938 |
||
939 |
end; |
|
940 |
||
28143 | 941 |
structure Code : CODE = struct open Code; end; |